APA সাইটেশন

(1995). Earth changes through time. Macmillian/McGraw-Hill school pub.

শিকাগো স্টাইলে সাইটেশন

Earth Changes Through Time. Macmillian/McGraw-Hill school pub, 1995.

এমএলএ সাইটেশন

Earth Changes Through Time. Macmillian/McGraw-Hill school pub, 1995.